Technical Report Details
| Date |
29-8-2005 |
| Number |
DISI-TR-05-10 |
| Title |
A Semantic Information Retrieval Advertisement and Policy Based System for a P2P Network |
| Authors |
Giovanna Guerrini, Viviana Mascardi, Marco Mesiti |
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| Abstract |
Semantic routing of queries in P2P systems has recently gained increasing
attention, since it allows to considerably improve effectiveness and accuracy
of data retrieval. A common assumption of existing systems, however, is
that a peer, when it is connected to the network, is unconditionally available to
share its resources with anyone interested in them. In this paper we take a more
exible approach, proposing an enhanced P2P system that incorporates peer sharing
policies, which allow a peer to state, for each of the concepts it deals with,
the conditions under which it is available to share resources and process requests
related to that concept. Such conditions may include conditions on the credentials
of the peer submitting the request, as well as temporal conditions and conditions
on the internal and network load of the peer. The semantic routing approach,
based on advertisements and peer behavior in answering previous requests, takes
into account peer sharing policies as well. |
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